Universal mill.



' PATENTED MAY 1, 1906.

.-K. 0. GARDNER.

UNIVERSAL MILL. APPLIOAEIIQN FILED FEB. 28. 1905.

2 SHEETSSHEET 1.

nivsu'ron slim/ No. 819,538. PATENTED MAY 1, 1906.

K. 0. GARDNER. UNIVERSAL MILL.

ABPLIGATION FILED PEB ZB, 1905. I

' 2 SHEETS-SHEET 2 WITNESSES ANYZTOR WM r y/w KIRTLAND C. GARDNER, OFPITTS BURG, PENNSYLVANIA, ASSIGNOR TU UNITED ENGINEERING AND FOUNDRYCOMPANY, OF PITTSBURG,

PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

UNEVERSAL WELL.

$pecification of Letters Patent.

ratentedira 1, recs.

Application filedlebruary 2a, 1905. Serial No. 247.705.

. To a whom it may concern.-

Be it known that I, KIRTLAND C. GARDNER, of- Pittsburg, Alleghenycounty, Pennsylvania, have invented a new and useful Universal Mill, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspecification, 1n which- Figure 1 is an end elevation of my improvedmill, partly in central vertical section. Fi 2 is a partial frontelevation with one-haf broken away, and Fig. 3 is a partialtop plan viewof the one-halfin horizontal section.

My invention relates to the class of universal mills, and is designed torovide a construction by which the vertica rolls may be brought nearerthe horizontal rolls than formerly, and the vertical rolls may beremoved without removin their driving-shaft and liftin them vertical y.

n the drawings, 2 2 represent the end housings containin the horizontalrolls 3 and bar having a V-sha ed or angular upper edge and bein securedetween the housings by keys 8. ach of the rolls 6 and 7 is sup orted inbearin s in its individual frame 9. ach frame is made in two halves slit in line with the axis of the vertical roll, tiie halves beirnsecured together by the lpwer bolts 10 and the u per bolts 11. The lowerportion of this split arms is recessed to fit upon the rest-bar andcontains the step-bearing for the roll 6. This step-bearing ispreferably provided with a removable bottom liner 12 to assist inremoving the roll. The upper part of the frame 9 is provided with a forkortion 13 to enga e the recessed sleeve 14 o the driving beve gear15,.which is splined on the drivingshaft 16. The wheel 15 engages the'beve Wheel-17, secured to the upper shaft of the vertical roll.

To hold the upper portions of the verticalroll frames in proper positionand allow them to be brought close to the horizontal rolls, I provide aninner bar 18, which extends back of the upper bearings 19 of thevertical rolls and is preferably set in recesses in the end windows ofthe housings inside the verticallyextending liners 20, and I provide anouter clamping-frame 21, which extends across the front of the upperbearings 19 and is remov- At one side of these rolls is the lower rest-7 bar 5 for the vertical rolls 6 and 7,- this resta vertical the bar 18,their heads being recessed within the vertical liners 20. The frame 21isalso preferably connected to the bra-r18 by the funtermediate bolt 23between the vertical rolls. The vertical rolls are adjusted by screws24, extending through the end housings and having heads 25, secured bydovetailed slides 26 in the frame 9.

In removing the vertical rolls the frame 21 is unboltel, the fronthalves of the verticalrcll frames are unbolted, the bottom liners 12 are-pulled out to disengage the gears 15 and 17 and the roll may then betipped for ward and drawn out without removing the upper driving-shaft.During the adjusting of the vertical rolls the upper securing-bolts 1 1for the roll-frames move within a recess in the front clamping-bar 21.

The advantages of my invention result from the simplicity of the.device, the bringin of the vertical rolls close to the horizonta rolls,and the casein removing and replacing the vertical rolls.

Many changes ma be made in the form and arrangement of t ing from myinvention claim- 1.. A universal mill having vertical rolls, a framesupportin at least one of said rolls, a rest-bar on whic 1 the frame iscarried, and meansfor clamping the upper portion of the frame inposition, said frame being divided on plane substantially parallel withthe plane in which the vertical-roll axes lie; substantially asdescribed.

2. Auniversal millhaving surest-bar, a vertical-roll frame carried onsaid rest-bar, and a ably secured by through-bolts 22. Ihave shown thesethrough-bolts as extendin through both the frame 2-1, the housings, an

removable transverse clamping device holding the vertical-roll frame inposition, the roll frame being made in inner and outer parts on oppositeSides of the rest-bar; substantially as described. I

3. {1 universal mill ha ringa rest-bar, a vertical-roll frame supportedon the rest-bar, and made in halves secured together on opposite sidesof the rest-bar, and means for clampingthe up 'er portion of the framein position su stantia 1y as described.

4. A universal mill having a restbar, a frame carrying a vertical rolland supported 'onfthe rest-bar; and removable transverse clamping-barsbetween whichthe upper part of the-I0 l-frame is secured, said framebeing divided substantiallyiin line with the rest-bar; substantially asdescribed.

5.' A universal mill having arest-bar, avertical-roll-carrying framehaving a recessed slidin engagement with the rest-bar, and up per 0amping-bars between which the upper portions of the frame is slidinglyclamped, said frame being divided substantially in line with therest-bar; substantially as described.

6. A universal mill having a vertical roll, a frame supporting said rolland provided with a step-bearin carried on the frame, and a restbar on wch the frame is carried, said frame being divided substantially in linewith the rest-bar substantially as described.

7.. A universal mill having vertical rolls, a driving-shaft therefor,gear connections between the rolls and the driving-shaft a sec tionalframe sup ortin the vertical rolls, said frame being ivideii in avertical plane passing through the axes of the vertical rolls, and meanswhereby the vertical rolls may be lowered in said frame to disengagetheir connections with the driving-shaft substantially as described.

8. A universal mill having vertical rolls, a

driving-shaft for said rolls, gear connections 30 between the rolls andthe driving-shaft, a frame sup orting said rolls, a rest-bar on whichthe ame 1s carried, means for securing1 the frame in position, saidframe bein divi ed in a vertical plane substantially in "c with therest-bar, and means in the frame whereby the rolls may be loweredtherein to disenga e them from the driving-shaft; substantial y asdescribed.

9. A universal mill having vertical rolls, an n er driving-shaft havingear connection t erewith, a divided frame or the rolls arranged to allowtheir tipping outwardly on the rest bar, and ineans or lowering thevertical roll to disengage its gear connections; substantially asdescribed.

10. A u veral mill having a pair of vertical rolls, a separate twopartframe for each of said pair, up er clamping-bars arranged to hold theair 0 frames in position, and a restbar on w 'ch the two frames arecarried; sub-1 stantially as described.

In testimony whereof I have hereunto set my hand. 7 v

' KIRTLAND C. GARDNER.

Witnesses:

Gao. B. BLEMING,

JOHN MILLER.

